(Updated with Free Press intention to file a Net Neutrality complaint for unlimited data plan omission) Following up on a silent rollout, AT&T has formally announced plans to enable FaceTime calls with any tiered data plan. The carrier previously lifted a policy restricting FaceTime to Mobile Share plans, but still required a device with a tiered plan and LTE, blocking out the iPhone 4S. "We have already begun updating our systems and processes and expect to start rolling the update out to customers on an ongoing basis beginning in the next couple of weeks," reads a blog post by AT&T's senior VP for voice and data, Mark Collins.